He was ordained in 1907 and served a long series of incumbents, in various parts of England and Cornwall as assistant curate. His Anglo-Catholic leanings were a bar to his preferment in the Church of England. In 1924, when he spoke publicly on "Re-catholicising Cornwall", a proffered appointment was withdrawn. However, in Autumn 1919 he was appointed curate of the parish of Redruth in Cornwall and served there until 1925. He then served for almost twenty years as the Vicar of Wendron, also in Cornwall. In 1935, he was appointed an honorary canon of Truro Cathedral. During his parochial ministry, he was a great friend of children, especially those deprived of proper care by familial poverty or the workhouse.
Historical work on Cornish studies
In between ministering to the needs of his parishioners, Canon Doble pursued a lifelong study of sub-Roman Celtic Britain and Brittany, in which he gained a European-wide reputation. He was especially interested in the medievalvitae or 'lives', and additional legends, related to the early Christian holy men and women of Cornwall, Wales and of Brittany. The fruit of his research was published between 1923 and 1945 in a collection of forty-eight booklets known as the "Cornish Saints Series". The later issues include historical commentaries by Charles Henderson. They have since been republished in book-form but without the Henderson commentaries: this edition was edited by Donald Attwater and appeared in 5 volumes published by the Dean and Chapter of Truro, 1960–1970. Until Orme's Saints of Cornwall was published in 2000, they were the most thorough, scholarly and reliable works available on the subject. Canon Doble's primary sources were far from easy to interpret: his booklets include summaries of the content or translations of the most significant of them. D. Simon Evans states in his introductory essay to Doble's Lives of the Welsh saints:
It is hardly necessary to dwell here on the value and significance of these lives. We may regard them as religious romances or novels, and as is generally agreed, they were written to enhance the cause of the church or parochia, whose freedom and independence was not infrequently threatened at this time. In no sense are they 'historical'; indeed they have more to offer the student of social anthropology and primitive religion. Much of what they contain is pure imagination, mingled and blended with myth, folklore and legend. But, as Doble reminds us, 'Legend is history, in the sense that the legends and traditions of a people are part of its history.'
Doble also collected Cornish folklore and folksong. In 1928 he was made a Bard of the Cornish Gorseth, taking the Bardic nameGwas Gwendron and received the Jenner medal of the Royal Institution of Cornwall. He was responsible for the first performance of the Cornish miracle playBeunans Meriasek since the Reformation in June 1924. There have since been many acclaimed productions, including those in the original Cornish language. Doble's research also led to the revival of the Hal-an-Tow event at the annual Helston Flora Day.
Doble's work on the Lives of the Welsh Saints has been collected into one volume and published by the University of Wales Press. In addition to his "Cornish Saints Series", he also published a series of histories of Cornish parishes. His personal library, including manuscript diaries, is at the Courtney Library, Royal Cornwall Museum, Truro.
